CA2083451C - Universal locking connector for human breathing systems - Google Patents
Universal locking connector for human breathing systemsInfo
- Publication number
- CA2083451C CA2083451C CA002083451A CA2083451A CA2083451C CA 2083451 C CA2083451 C CA 2083451C CA 002083451 A CA002083451 A CA 002083451A CA 2083451 A CA2083451 A CA 2083451A CA 2083451 C CA2083451 C CA 2083451C
- Authority
- CA
- Canada
- Prior art keywords
- annular
- connector
- face
- component
- retaining members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title abstract description 6
- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 238000000926 separation method Methods 0.000 claims description 2
- 230000013011 mating Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/10—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
- F16L37/113—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/1225—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/26—Couplings of the quick-acting type in which the connection is made by transversely moving the parts together, with or without their subsequent rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2201/00—Special arrangements for pipe couplings
- F16L2201/10—Indicators for correct coupling
Abstract
Connector connects two annular objects face-to-face. It may be used as a hose end coupling that connects two flanged hose ends end-to-end. It includes two components of the same configuration that connect directly to one another. Each a hose end flange preferably has a tapered back face and an O-ring seal fitted in a groove in the end face to engage an O-ring seal on the end face on the mating component. To hold the two end flanges together, two connector components of the same configuration are mounted on the respective end flanges. Each includes two part annular retainers that engage over the hose end flanges and urge them together. The web joining the two retainers has an offset section with teeth that engage similar teeth on the other connector component. The coupling is intended for use in breathing gas supply systems such as are used in medical applications.
Description
20834~ 1 A IJNIVFR~AL rl~C~ yG CoN~FcToR FOR T~ul\rAN RDFAIT~ G SYSTFM~A
The present invenaon relates to a connector for connecang two annular objects. It is especially intended for use in breathing gas supply systems such as are used for the supply of breathing gases to medical patients, for example during surgical procedures and the like, although other uses are possible.
CnnnPrfinn~ in such systems are now made using push-fit connectors of rubber and metal or plasac, or using taper fit connectors of plastic or metal. These fitangs will someames accidentally separate, ~ . ~ v safety and putting a patient at risk. It is therefore desired to provide a positively locking connector for this purpose.In order to provide for variable system r~ the connector should be non-polarized so that each connector is directly ' '- to every other connector.
Other desiderata include ease of assembly, the absence of loose extra parts, a clear signal on locking, universal applicability in the breathing gas system and a small dead space in the connector.
The small dead space is beneficial in some arplir~iinn~ for example tracheal tube . where the tracheal tube can protrude through the connector to within the marrying rnnlrnn,-n~
The present invenaon aims at the provision of a connector that will provide one or more of these desired . ~
According to one aspect of the present invenaon there is provided a connector for connecang two annular objects arranged face-to-face, the connectorcvmprising two, of the same ~ ;.... and having a coupled condiaon in which the two . . are jn~Prln~l~l each component GU~
.~
The present invenaon relates to a connector for connecang two annular objects. It is especially intended for use in breathing gas supply systems such as are used for the supply of breathing gases to medical patients, for example during surgical procedures and the like, although other uses are possible.
CnnnPrfinn~ in such systems are now made using push-fit connectors of rubber and metal or plasac, or using taper fit connectors of plastic or metal. These fitangs will someames accidentally separate, ~ . ~ v safety and putting a patient at risk. It is therefore desired to provide a positively locking connector for this purpose.In order to provide for variable system r~ the connector should be non-polarized so that each connector is directly ' '- to every other connector.
Other desiderata include ease of assembly, the absence of loose extra parts, a clear signal on locking, universal applicability in the breathing gas system and a small dead space in the connector.
The small dead space is beneficial in some arplir~iinn~ for example tracheal tube . where the tracheal tube can protrude through the connector to within the marrying rnnlrnn,-n~
The present invenaon aims at the provision of a connector that will provide one or more of these desired . ~
According to one aspect of the present invenaon there is provided a connector for connecang two annular objects arranged face-to-face, the connectorcvmprising two, of the same ~ ;.... and having a coupled condiaon in which the two . . are jn~Prln~l~l each component GU~
.~
-2- 2o83451 first and second part annular retaining members P ~c~cf~ with opposite facing sides of the two annular objects, and extending part way tll~;ledbUU~, bridge means joining the two retaining members;
mounting means ~ .r",1f,1 of the other component mounting the component on a respective one of the annular objects;
rk;.~c means comprising undercut, axially facing teeth on the component engageable with teeth of the same ~.- ri~ i.. on the other component to fasten the - - mr - - together around the two annular objects.
The retaining members preferably have a tapered faces that engage mating tapered faces on the back sides of the two annular objects so that when the connector are engaged, they wedge the two annular objects together. This is p~uliculally effective when a resilient seal is provided between the two annular objects. The two objects themselves may be hose end flanges or they may be other ~ for example a hose end and a fitting on a console or an According to anothe~ aspect of the present invention there is provided a hose end coupling for connecting two hose ends end-to-end comprising two fittings of the same .~".riC",~ having a coupled condition in which the two fittings are in~rl. rkP~l each fitting ~ c (a) a hose end component (i) an annular end flange with an end face and an annular back face that slopes radially outwardly towards the end face; and (ii) annular, resilient seal means projecting from the end face and engaging face to face with the seal means of the hose end component of the other fitting in the coupled condition; and ~.:
, ~
mounting means ~ .r",1f,1 of the other component mounting the component on a respective one of the annular objects;
rk;.~c means comprising undercut, axially facing teeth on the component engageable with teeth of the same ~.- ri~ i.. on the other component to fasten the - - mr - - together around the two annular objects.
The retaining members preferably have a tapered faces that engage mating tapered faces on the back sides of the two annular objects so that when the connector are engaged, they wedge the two annular objects together. This is p~uliculally effective when a resilient seal is provided between the two annular objects. The two objects themselves may be hose end flanges or they may be other ~ for example a hose end and a fitting on a console or an According to anothe~ aspect of the present invention there is provided a hose end coupling for connecting two hose ends end-to-end comprising two fittings of the same .~".riC",~ having a coupled condition in which the two fittings are in~rl. rkP~l each fitting ~ c (a) a hose end component (i) an annular end flange with an end face and an annular back face that slopes radially outwardly towards the end face; and (ii) annular, resilient seal means projecting from the end face and engaging face to face with the seal means of the hose end component of the other fitting in the coupled condition; and ~.:
, ~
(b) a connector component including (i) mounting means mounting the connector component on the hose end component for free rotation thereon;
(ii) two part annular ~;O"r., ~ faces converging radially outwardly and engaging with the back faces of the end flanges in the coupled condition; and (iui) locking means comprising undercut, axially extending teeth engaging with the teeth of the other component to hold the 1, together against axial and radial separation in the coupled condition.
The seal means may be a CUIIV~ OII~I O-ring seal held in an ~ U1 groove in the end face flange. The O-rings provide sufficient resiliency that the connector may be rigid. To provide for a clear signal of F-~ 15 -~, the connector .u~ preferably engage with an audible "snap"
The locking mechanism for joining the clamp parts preferably requires a double action to unlock so as to reduce the possibility of an unintended ~1;~ .. ,.. 1;
An; ~ of the invention will be described in the following by way of example, it being understood that the invention is not to be construed as limited to that ~",1"~.1,.......
In the a . ~ g drawings which illustrate an exemplary ~ " of the present invention:
Figure 1 is a side view of the connector in a coupled condition;
Figure 2 is a side view of the connector in a uncoupled condition;
Figure 3 is a cross-section of the connector in the coupled condition;
Figure 4 is a side view of a hose end, partially in cross section;
Figure S is a front end view of a connector co.- r - ~
P~
Figure 6 is a back end view of the connector, , ~, Figure 7 is an end view of a hose end; and Figure 8 is a view along line 8-8 of Figure 7.
Referring to the ~ drawings, and especially to Figures 1 and 2, there is illustrated a hose coupling 10 for connecting two hoses 12 and 14 end-to-end. The coupling includes two fittings 16 and 18 of the same c~ Each fitting includes a hose end component and a connector ~
As illustrated most ~ ti~,ul-~lly in Figure 4, each hose end component 20 includes an annular flamge 22 with a flat end face 24. The end face has an annular groove 26 forming a seat for an O-ring seal 28. The back face 30 of the flange 22 flares outwardly towards the end face 24. Spaced from the back face 30 is an annular flange 32.
Cooperating with the hose end ~ , are the two connector c 34 and 36. Like the hose end , the two connector :- are identical. Each connector componeût includes a part annular retainer 38 amd a part annular retainer 40 coupled by a part cylindrical web 42. The retainer 38 is somewhat less than one-half of a complete circle in extent i.e., it has an angular extent less than 180. The retainer 40 is ~ or~l ' y and slightly greater than one-half a circle in extent i.e., it has an angular extent greater than 180. The ret~iners haYe cu--rlu~.li..g radially outwardly convergent tapered faces 44 and 46 that engage, as illustrated most 1~'; ' 'Sl in Figure 3, with the back faces 30 of the flanges 22 of the hose end ~ 20.
On each of the connector, , 34 and 36, the retainer 40 is somewhat oval in outer profile, as shown in Figures S and 6.
The retainer 40 engages in the groove between the back face 30 and the flange 32 of the associated hose end component to hold the two parts together.
.~. ~
";~' - s -Where tbe retainer 40 extends cu r ~ ~ly beyond the retainer 38, the web has a portion with an extended Cil~ extent. This provides a ~ ul~r~lc~
face 50 equipped with undercut teeth 52. The undercut formation is provided by arranging the teeth to project both radially and ~ r - 'Iy from the web. C~ ly~ the teeth engage behind the teeth of the other connector ~l~rnPnt Because the connector r are identical, this locking structure is found on both sides of the connector.Neither side is sufficient to hold the connector together. Indeed, if either side is ,:' ' then the connector will spring apart.
The two connector . A ' are provided with ~ iu~ r~ idl ribs on the outside of the web, opposite the two retainers. These are primarily for ....rul~ ,.L
purposes.
The connector: ~ are equipped with slight d~ ;o.., 56 in the webs, adjacent the opposite ends of the web. These serve as finger grips in ~ li"~
the connector.
As illustrated most particularly in Figures 7 and 8, the groove 26 for the O-ring 28 is undercut at 58 to ~ distortion of the O-ring under . . 1,,.:~;011.
Cut-aways 60 are formed at ~I;-.~P~nr~11y opposed positions to drain the undercut 58 and to allow entry of a tool to remove the O-ring for l~ f 1 In use of the coupling, the two hose ends are brought into 1~ " with one another, which places the two connector ~ A ' 34 and 36 in cv..rlo~ 6 but not yet engaged positions. To engage the two parts, they are simply squeezed together so that the O-rings will yield and the teeth 52 of one part will snap into f-l~6~f with the teeth of the other. The audible snap provides a positive signal that proper el~6..6~ has been achieved. During connection the conic faces 30 engage mating conic faces 44 and 46 to ~ .
20~34~ 1 provide a self-centering action as well as the desired axial . , ~ ,~;oll of the ring seal. To disconnect the coupling, it is necessary to squeeze the connector to push the two connector towards one another and then to twist the c~ away from one another using the finger d~ ;vlls s6. In that this type of action is unlikely to occur by accident, the coupling is quite secure.
As will be d~ , the connector - -1l can rotate freely around the hose end before coupling so that torsional distortion in the hose is n ;nimi7Prl Where it is desired to connect a hose end to a fixed fitting, for example on the console of an d~lu~ t instrument, a, ' y fitting may be provided on the console face.
While one . ' of the present invention has been described in the foregoing, it is to be understood that other . 1 ~ ' are possible within the scope of the invention. The invention is described in connection with its use for connecting parts of a breathing system, but other uses are possible. For example, the connector could be used as a safety closure for containers such as pill boxes. The invention is thus to be considered limited solely by the scope of the appended claims.
~ -.
.~
(ii) two part annular ~;O"r., ~ faces converging radially outwardly and engaging with the back faces of the end flanges in the coupled condition; and (iui) locking means comprising undercut, axially extending teeth engaging with the teeth of the other component to hold the 1, together against axial and radial separation in the coupled condition.
The seal means may be a CUIIV~ OII~I O-ring seal held in an ~ U1 groove in the end face flange. The O-rings provide sufficient resiliency that the connector may be rigid. To provide for a clear signal of F-~ 15 -~, the connector .u~ preferably engage with an audible "snap"
The locking mechanism for joining the clamp parts preferably requires a double action to unlock so as to reduce the possibility of an unintended ~1;~ .. ,.. 1;
An; ~ of the invention will be described in the following by way of example, it being understood that the invention is not to be construed as limited to that ~",1"~.1,.......
In the a . ~ g drawings which illustrate an exemplary ~ " of the present invention:
Figure 1 is a side view of the connector in a coupled condition;
Figure 2 is a side view of the connector in a uncoupled condition;
Figure 3 is a cross-section of the connector in the coupled condition;
Figure 4 is a side view of a hose end, partially in cross section;
Figure S is a front end view of a connector co.- r - ~
P~
Figure 6 is a back end view of the connector, , ~, Figure 7 is an end view of a hose end; and Figure 8 is a view along line 8-8 of Figure 7.
Referring to the ~ drawings, and especially to Figures 1 and 2, there is illustrated a hose coupling 10 for connecting two hoses 12 and 14 end-to-end. The coupling includes two fittings 16 and 18 of the same c~ Each fitting includes a hose end component and a connector ~
As illustrated most ~ ti~,ul-~lly in Figure 4, each hose end component 20 includes an annular flamge 22 with a flat end face 24. The end face has an annular groove 26 forming a seat for an O-ring seal 28. The back face 30 of the flange 22 flares outwardly towards the end face 24. Spaced from the back face 30 is an annular flange 32.
Cooperating with the hose end ~ , are the two connector c 34 and 36. Like the hose end , the two connector :- are identical. Each connector componeût includes a part annular retainer 38 amd a part annular retainer 40 coupled by a part cylindrical web 42. The retainer 38 is somewhat less than one-half of a complete circle in extent i.e., it has an angular extent less than 180. The retainer 40 is ~ or~l ' y and slightly greater than one-half a circle in extent i.e., it has an angular extent greater than 180. The ret~iners haYe cu--rlu~.li..g radially outwardly convergent tapered faces 44 and 46 that engage, as illustrated most 1~'; ' 'Sl in Figure 3, with the back faces 30 of the flanges 22 of the hose end ~ 20.
On each of the connector, , 34 and 36, the retainer 40 is somewhat oval in outer profile, as shown in Figures S and 6.
The retainer 40 engages in the groove between the back face 30 and the flange 32 of the associated hose end component to hold the two parts together.
.~. ~
";~' - s -Where tbe retainer 40 extends cu r ~ ~ly beyond the retainer 38, the web has a portion with an extended Cil~ extent. This provides a ~ ul~r~lc~
face 50 equipped with undercut teeth 52. The undercut formation is provided by arranging the teeth to project both radially and ~ r - 'Iy from the web. C~ ly~ the teeth engage behind the teeth of the other connector ~l~rnPnt Because the connector r are identical, this locking structure is found on both sides of the connector.Neither side is sufficient to hold the connector together. Indeed, if either side is ,:' ' then the connector will spring apart.
The two connector . A ' are provided with ~ iu~ r~ idl ribs on the outside of the web, opposite the two retainers. These are primarily for ....rul~ ,.L
purposes.
The connector: ~ are equipped with slight d~ ;o.., 56 in the webs, adjacent the opposite ends of the web. These serve as finger grips in ~ li"~
the connector.
As illustrated most particularly in Figures 7 and 8, the groove 26 for the O-ring 28 is undercut at 58 to ~ distortion of the O-ring under . . 1,,.:~;011.
Cut-aways 60 are formed at ~I;-.~P~nr~11y opposed positions to drain the undercut 58 and to allow entry of a tool to remove the O-ring for l~ f 1 In use of the coupling, the two hose ends are brought into 1~ " with one another, which places the two connector ~ A ' 34 and 36 in cv..rlo~ 6 but not yet engaged positions. To engage the two parts, they are simply squeezed together so that the O-rings will yield and the teeth 52 of one part will snap into f-l~6~f with the teeth of the other. The audible snap provides a positive signal that proper el~6..6~ has been achieved. During connection the conic faces 30 engage mating conic faces 44 and 46 to ~ .
20~34~ 1 provide a self-centering action as well as the desired axial . , ~ ,~;oll of the ring seal. To disconnect the coupling, it is necessary to squeeze the connector to push the two connector towards one another and then to twist the c~ away from one another using the finger d~ ;vlls s6. In that this type of action is unlikely to occur by accident, the coupling is quite secure.
As will be d~ , the connector - -1l can rotate freely around the hose end before coupling so that torsional distortion in the hose is n ;nimi7Prl Where it is desired to connect a hose end to a fixed fitting, for example on the console of an d~lu~ t instrument, a, ' y fitting may be provided on the console face.
While one . ' of the present invention has been described in the foregoing, it is to be understood that other . 1 ~ ' are possible within the scope of the invention. The invention is described in connection with its use for connecting parts of a breathing system, but other uses are possible. For example, the connector could be used as a safety closure for containers such as pill boxes. The invention is thus to be considered limited solely by the scope of the appended claims.
~ -.
.~
Claims (18)
1. A connector for connecting two annular objects arranged face-to-face, the connector comprising two components of the same configuration and having a coupled condition in which the two components are interlocked, each component comprising:
first and second part annular retaining members engageable with opposite facing sides of the two annular objects, and extending part way thereabout;
bridge means joining the two retaining members;
mounting means independent of the other component mounting the component on a respective one of the annular objects;
interlocking means comprising undercut, axially facing teeth on the component engageable with teeth of the same configuration on the other component to fasten the components together around the two annular objects.
first and second part annular retaining members engageable with opposite facing sides of the two annular objects, and extending part way thereabout;
bridge means joining the two retaining members;
mounting means independent of the other component mounting the component on a respective one of the annular objects;
interlocking means comprising undercut, axially facing teeth on the component engageable with teeth of the same configuration on the other component to fasten the components together around the two annular objects.
2. A connector according to Claim 1 wherein the retaining members have confronting, outwardly convergent faces for engaging the oppositely facing sides of the respective annular objects.
3. A connector according to Claim 1 wherein the bridge means comprises a part cylindrical web.
4. A connector according to Claim 1 wherein the mounting means comprises a part annular mounting member having an annular extent greater than 180°.
5. A connector according to Claim 4 wherein the mounting member is comprises one of the retaining members.
6. A connector according to Claim 3 wherein the part cylindrical web has a first portion with an annular extent less than 180°, a second portion with an annular extent greater than 180° and a circumferential face joining the first and second portions.
7. A connector according to Claim 6 wherein the undercut teeth project from the circumferential face.
8. A hose end coupling for connecting two hose ends end-to-end comprising two fittings of the same configuration having a coupled condition in which the two fittings are interlocked, each fitting comprising:
(a) a hose end component (i) an annular end flange with an end face and an annular back face that slopes radially outwardly towards the end face; and (ii) annular, resilient seal means projecting from the end face and engaging face to face with the seal means of the hose end component of the other fitting in the coupled condition; and (b) a connector component including (i) mounting means mounting the connector component on the hose end component for free rotation thereon;
(ii) two part annular confronting faces converging radially outwardly and engaging with the back faces of the end flanges in the coupled condition; and (iii) locking means comprising undercut, axially extending teeth engaging with the teeth of the other component to hold the components together against axial and radial separation in the coupled condition.
(a) a hose end component (i) an annular end flange with an end face and an annular back face that slopes radially outwardly towards the end face; and (ii) annular, resilient seal means projecting from the end face and engaging face to face with the seal means of the hose end component of the other fitting in the coupled condition; and (b) a connector component including (i) mounting means mounting the connector component on the hose end component for free rotation thereon;
(ii) two part annular confronting faces converging radially outwardly and engaging with the back faces of the end flanges in the coupled condition; and (iii) locking means comprising undercut, axially extending teeth engaging with the teeth of the other component to hold the components together against axial and radial separation in the coupled condition.
9. A coupling according to Claim 8 wherein the confronting faces of the two connector components are aligned in the coupled condition of the coupling.
10. A coupling according to Claim 8 or 9 wherein each connector component comprises two part annular retaining members on which the respective confronting faces are formed.
11. A coupling according to Claim 10 wherein the mounting means comprise one of the retaining members.
12. A coupling according to Claim 10 wherein one of the retaining members has an angular extent greater than that of the other retaining member.
13. A coupling according to Claim 12 wherein each connector component comprises a web extending between the retaining members.
14. A coupling according to Claim 13 wherein the locking teeth project from the web.
15. A coupling according to Claim 11, 12, 13 or 14 wherein each hose end component comprises retainer means spaced from the end flange and capturing one of the retaining members of the associated connector component between the end flange and the retainer means.
16. A coupling according to Claim 15 wherein the retainer means comprise an annular flange.
17. A coupling according to Claim 1 wherein the annular end flange comprises an annular groove in the end face thereof, the seal means comprising an annular, resilient seal ring seated in the groove.
18. A coupling according to Claim 17 wherein the seal ring is an O-ring.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002083451A CA2083451C (en) | 1992-11-20 | 1992-11-20 | Universal locking connector for human breathing systems |
| US08/134,633 US5383691A (en) | 1992-11-20 | 1993-10-12 | Universal locking connector for human breathing systems |
| GB9323791A GB2274494B (en) | 1992-11-20 | 1993-11-18 | A universal locking connector for human breathing systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002083451A CA2083451C (en) | 1992-11-20 | 1992-11-20 | Universal locking connector for human breathing systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2083451A1 CA2083451A1 (en) | 1994-05-21 |
| CA2083451C true CA2083451C (en) | 1996-09-17 |
Family
ID=4150719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002083451A Expired - Fee Related CA2083451C (en) | 1992-11-20 | 1992-11-20 | Universal locking connector for human breathing systems |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5383691A (en) |
| CA (1) | CA2083451C (en) |
| GB (1) | GB2274494B (en) |
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|---|---|---|---|---|
| FR2736133B1 (en) * | 1995-06-30 | 1997-09-19 | Caillau Ets | WATERPROOF RADIAL SLEEVE FITTING |
| DE19835287C2 (en) * | 1998-08-05 | 2000-08-31 | Behr Gmbh & Co | Housing of a heating or air conditioning system of a motor vehicle |
| WO2001024336A1 (en) * | 1999-09-24 | 2001-04-05 | It International Telecom Inc. | An underwater cable protection pipe |
| US6494502B1 (en) * | 2000-12-21 | 2002-12-17 | Rolf C. Hagen, Inc. | Connector for small animal cage systems |
| BR0205971A (en) * | 2001-09-07 | 2003-09-30 | Pirelli General Plc | Fiber optic installation, and method of installing optical fibers in a joint housing |
| GB0500943D0 (en) * | 2005-01-17 | 2005-02-23 | Baker Geoffrey J | A connector part |
| DE102005020648A1 (en) * | 2005-05-03 | 2006-11-16 | Sartorius Ag | Connector, connector system and use |
| US7744133B2 (en) * | 2007-02-27 | 2010-06-29 | Sunpower, Inc. | Jointed head with temporary clamp for stirling machine |
| WO2010107412A1 (en) * | 2009-03-16 | 2010-09-23 | Johnson Theodore D | One piece connection assembly |
| US8419077B2 (en) * | 2009-08-26 | 2013-04-16 | Toyota Motor Engineering & Manufacturing North America, Inc. | Self aligning coupling |
| CN202789738U (en) * | 2012-07-31 | 2013-03-13 | 中山大洋电机股份有限公司 | Connecting structure of blower fan spiral casing and conversion interface |
| EP3717815A4 (en) * | 2017-12-01 | 2021-07-28 | MANN+HUMMEL GmbH | Fluid duct arrangement and connectors for a fluid duct |
| WO2020201545A1 (en) * | 2019-04-05 | 2020-10-08 | Scandinavian Real Heart Ab | A vascular coupling device |
| WO2021067269A1 (en) * | 2019-09-30 | 2021-04-08 | Emerson Electric Co. | Mounting assemblies and methods for disposer installation |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US398829A (en) * | 1889-03-05 | Pipe-coupling for air-brakes | ||
| US404429A (en) * | 1889-06-04 | Merrill | ||
| US714311A (en) * | 1901-08-10 | 1902-11-25 | George S Lee | Universal union or coupling. |
| US939437A (en) * | 1909-02-06 | 1909-11-09 | Vincen P Mcvoy | Hose-coupling. |
| US944503A (en) * | 1909-03-06 | 1909-12-28 | Claude Revaillot | Pipe-joint. |
| US1044183A (en) * | 1911-04-05 | 1912-11-12 | Harmon L Irwin | Hose and pipe coupling. |
| US1246255A (en) * | 1916-04-25 | 1917-11-13 | James T Fudge | Coupling. |
| US1611286A (en) * | 1925-01-26 | 1926-12-21 | William H Keller Inc | Hose coupling |
| US2204392A (en) * | 1938-02-25 | 1940-06-11 | Mary Mastowski | Hose and pipe coupler |
| US2950130A (en) * | 1957-09-05 | 1960-08-23 | Schneider Richard | Fluid pressure responsive pipe coupling having identical halves |
| US3638971A (en) * | 1968-02-12 | 1972-02-01 | Rucker Co | Coupling |
| SE351478B (en) * | 1970-12-09 | 1972-11-27 | Sandvik Ab | |
| US4139223A (en) * | 1977-11-14 | 1979-02-13 | Clements Lloyd W | Irrigation pipe coupler |
| CH635180A5 (en) * | 1979-02-23 | 1983-03-15 | Fischer Ag Georg | PIPE COUPLING. |
-
1992
- 1992-11-20 CA CA002083451A patent/CA2083451C/en not_active Expired - Fee Related
-
1993
- 1993-10-12 US US08/134,633 patent/US5383691A/en not_active Expired - Fee Related
- 1993-11-18 GB GB9323791A patent/GB2274494B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2083451A1 (en) | 1994-05-21 |
| US5383691A (en) | 1995-01-24 |
| GB2274494A (en) | 1994-07-27 |
| GB2274494B (en) | 1995-12-06 |
| GB9323791D0 (en) | 1994-01-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |